Item Type:Audio Adapter Material:ABS Color:As shown in the picture. Condition: Brand New Fitment: Fit for RNS-E navigation installed in A3, A4, A6, A8, R8, TT, etc. Fit for RNS-E navigation built into Lam-borgh-ini Ga-llardo Fit for RNS-E TV tuner connector 32 pins Installation: Red power cord is connected to 12V + Black power cord is connected to 12V- Insert the CD player jack (please confirm the corresponding socket), the phone is connected to the module, and the auxiliary audio source is selected to play the phone music. The factory's CD changer does not affect this modification. 1、Car radio has no functional restrictions through devices compatible with Bluetooth. 2、Allows you to connect external audio sources, as wireless technology advances and subsequent wireless transmissions are the trend of the times. 3、The adapter is built specifically for vehicle, a wireless music product for the car. 4、Compatible with Bluetooth 4.0 3.0 2.0,can support general MP3 format audio, also supports WMA, WAV, FLAC and other high-quality audio format decoding, non-universal ordinary Bluetooth function, can support DSD Capacity transmission, stable data transmission between devices, high fidelity, designed for music enthusiasts. 5、In addition, you can use movies, map navigation and more. 1 x Audio Adapter 4 x Tool